# InstantTODO vs 受験カレンダー

The clearest difference is ads: 受験カレンダー at none against InstantTODO's shown. 受験カレンダー also leads on update cadence (every 2 weeks vs every 6 weeks) and iOS requirement (12.0 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. InstantTODO sells 2 in-app purchases, starting at $2.49 per month and 受験カレンダー sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

InstantTODO ships an update every 6 weeks, 受験カレンダー every 2 weeks. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | InstantTODO | 受験カレンダー |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/instanttodo-never-forget-task/id1528323467/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 77.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 78 MB | 67 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [flickfrog](https://appshunter.io/developer/513272768) | [Ayako Kato](https://appshunter.io/developer/1658214846) |

## What reviewers say

### InstantTODO

[App page](https://appshunter.io/ios/app/instanttodo-never-forget-task/id1528323467)

This is a straightforward to-do list application designed for users who struggle with remembering tasks. It features persistent alarms to ensure nothing is forgotten, simple one-tap task addition, and easy management through swiping and holding. It also offers iCloud backup and synchronization.

**Highlights:** Persistent alarms, One-tap task addition, Simple single list, iCloud backup and sync, Easy sorting and deletion, Customizable backgrounds

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $2.49 | per month |
| Premium Plan(Annual) | $23.49 | per year |

**What reviewers like**

- 👍 Easy to use and simple
- 💡 Persistent notifications helpful for forgetful users
- 🎨 Color-coding and categorization are useful
- ✨ Attractive and clean UI with nice backgrounds
- 🚀 Quick and smooth operation

**What reviewers complain about**

- 🐛 App crashes or becomes unresponsive
- 🐛 App fails to open after updates or specific actions
- 🔔 Notifications not working or not appearing
- 💰 Premium plan is expensive
- 📉 Ads are present

**Reported bugs**

- App stops opening
- App becomes unusable
- Notes disappear
- Input area becomes unresponsive
- Order of tasks changes automatically

**Requested features**

- Calendar integration or Google Calendar sync
- More characters and backgrounds, especially cats
- Option to have tasks repeat without limit
- Ability to input a single emoji
- A way to be praised upon task completion


### 受験カレンダー

[App page](https://appshunter.io/ios/app/id1658214844)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 有料コース | $1.99 | one-time |


## Frequently asked questions

### Is InstantTODO free?

InstantTODO is free to download, with in-app purchases available.

### Is 受験カレンダー free?

受験カレンダー is free to download, with in-app purchases available.

### Do InstantTODO or 受験カレンダー have ads?

InstantTODO shows ads; 受験カレンダー does not.

### Which is updated more often, InstantTODO or 受験カレンダー?

InstantTODO ships an update every 6 weeks, and 受験カレンダー every 2 weeks. Most recently, InstantTODO was updated on November 3, 2026 and 受験カレンダー on October 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*